Installed an open source garage door opener, and I’m loving it

Like Ars Senior Technology Editor Lee Hutchinson, I have a garage. The door on that garage is opened and closed by a device made by a company that, as with Lee’s, offers you a way to open and close it with a smartphone app. But that app doesn’t work with my preferred home automation system, Home Assistant, and also looks and works like an app made by a garage door company.

I had looked into the ratgdo Lee installed, and raved about, but hooking it up to my particular Genie/Aladdin system would have required installing limit switches. So I instead installed an OpenGarage unit ($50 plus shipping). My garage opener now works with Home Assistant (and thereby pretty much anything else), it’s not subject to the whims of API access, and I’ve got a few ideas how to make it even better. Allow me to walk you through what I did, why I did it, and what I might do next.

Thanks, I’ll take it from here, Genie

Genie, maker of my Wi-Fi-capable garage door opener (sold as an “Aladdin Connect” system), is not in the same boat as the Chamberlain/myQ setup that inspired Lee’s project. There was a working Aladdin Connect integration in Home Assistant, until the company changed its API in January 2024. Genie said it would release its own official Home Assistant integration in June, and it did, but then it was quickly pulled back, seemingly for licensing issues. Since then, no updates on the matter. (I have emailed Genie for comment and will update this post if I receive reply.)

This is not egregious behavior, at least on the scale of garage door opener firms. And Aladdin’s app works with Google Home and Amazon Alexa, but not with Home Assistant or my secondary/lazy option, HomeKit/Apple Home. It also logs me out “for security” more often than I’d like and tells me this only after an iPhone shortcut refuses to fire. It has some decent features, but without deeper integrations, I can’t do things like have the brighter ceiling lights turn on when the door opens or flash indoor lights if the garage door stays open too long. At least not without Google or Amazon.

I’ve seen OpenGarage passed around the Home Assistant forums and subreddits over the years. It is, as the name implies, fully open source: hardware design, firmware, and app code, API, everything. It is a tiny ESP board that has an ultrasonic distance sensor and circuit relay attached. You can control and monitor it from a web browser, mobile or desktop, from IFTTT, MQTT, and with the latest firmware, you can get email alerts. I decided to pull out the 6-foot ladder and give it a go.

Installing the little watching owl

You generally mount the OpenGarage unit to the roof of your garage, so the distance sensor can detect if your garage door has rolled up in front of it. There are options for mounting with magnetic contact sensors or a side view of a roll-up door, or you can figure out some other way in which two different sensor depth distances would indicate an open or closed door. If you’ve got a Security+ 2.0 door (the kind with the yellow antenna, generally), you’ll need an adapter, too.

The toughest part of an overhead install is finding a spot that gives the unit a view of your garage door, not too close to rails or other obstructing objects, but then close enough for the contact wires and USB micro cable to reach. Ideally, too, it has a view of your car when the door is closed and the car is inside, so it can report its presence. I’ve yet to find the right thing to do with the “car is inside or not” data, but the seed is planted.

My garage setup, like most of them, is pretty simple. There’s a big red glowing button on the wall near the door, and there are two very thin wires running from it to the opener. On the opener, there are four ports that you can open up with a screwdriver press. Most of the wires are headed to the safety sensor at the door bottom, while two come in from the opener button. After stripping a bit of wire to expose more cable, I pressed the contact wires from the OpenGarage into those same opener ports.

After that, I connected the wires to the OpenGarage unit’s screw terminals, then did some pencil work on the garage ceiling to figure out how far I could run the contact and micro-USB power cable, getting the proper door view while maintaining some right-angle sense of order up there. When I had reached a decent compromise between cable tension and placement, I screwed the sensor into an overhead stud and used a staple gun to secure the wires. It doesn’t look like a pro installed it, but it’s not half bad.

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